Abstract：A feeding trial was conducted to investigate the effect of immune and serum biochemical response of tilapia (Oreochromis niloticus) juveniles under low temperature (9 ℃)stress .Diets with eight carbohydrate levels (10% ,15% ,20% ,25% ,30% ,35% ,40% ,and 45% ) were fed to tilapia juveniles twice a day for 49 days .The oxidation resistance levels was found to be increased at first and decreased subsequently with increasing dietary carbohydrate levels .The maximal lysozyme activity of 54 .08 U/100 mL was observed in the fish fed the diet containing carbohydrate level of 35% . The total superoxide dismutase was increased with increasing dietary carbohydrate levels .The tilapia fed the diets containing 35% carbohydrate showed significantly (P <0 .05) higher catalase value than the tilapia fed diets containing 10% , 40% and 45% carbohydratedid .Under low temperatures stress ,the liver and cardiac muscles of the fish fed the diet containing high levels of carbohydrates were damaged ,resulting in abnormal serum biochemical indices .
收稿日期: 2014-02-25
引用本文:
刘康,黄凯,覃希,吴宏玉,程远,黄清,黄秀芸. 饲料糖水平对吉富罗非鱼幼鱼免疫指标及低温下血液生化指标的影响[J]. 水产科学, 2014, (2): 87-91.
LIU Kang,HUANG Kai,QIN Xi,WU Hongyu,CHENG Yuan,HUANG Qing,HUANG Xiuyun. Effects of Dietary Carbohydrate Levels on Immunity and Serum Biochemical Indices under Low Temperature Stress in Tilapia (Oreochromis niloticus). Fisheries Science, 2014, (2): 87-91.
